Outputs (728)

Near stall unsteady flow responses to morphing flap deflections (2021)
Journal Article

The unsteady flow characteristics and responses of an NACA 0012 airfoil fitted with a bio-inspired morphing trailing edge flap (TEF) at near-stall angles of attack (AoA) undergoing downward deflections are investigated at a Reynolds number of 0.62 ×... Read More about Near stall unsteady flow responses to morphing flap deflections.

High-fidelity CFD simulations of two wind turbines in arrays using nonlinear frequency domain solution method (2021)
Journal Article

Aerodynamics of a wind turbine within windfarms is strongly influenced by the wake of neighbouring turbines. In particular, the performance of a wind turbine can be dramatically reduced depending on its location in the wake region of an upstream turb... Read More about High-fidelity CFD simulations of two wind turbines in arrays using nonlinear frequency domain solution method.

Aerodynamic and aeroacoustic analysis of a harmonically morphing airfoil using dynamic meshing (2021)
Journal Article

This work explores the aerodynamic and aeroacoustic responses of an airfoil fitted with a harmonically morphing Trailing Edge Flap (TEF). An unsteady parametrization method adapted for harmonic morphing is introduced, and then coupled with dynamic me... Read More about Aerodynamic and aeroacoustic analysis of a harmonically morphing airfoil using dynamic meshing.

High-resolution direct numerical simulations of flow structure and aerodynamic performance of wind turbine airfoil at wide range of Reynolds numbers (2021)
Journal Article

The objective of this study is to develop direct numerical simulations (DNS) to investigate the aerodynamic performance, transition to turbulence, and to capture the laminar separation bubble occurring on a wind turbine blade. Simulations are conduct... Read More about High-resolution direct numerical simulations of flow structure and aerodynamic performance of wind turbine airfoil at wide range of Reynolds numbers.

Using laminate hybridisation (CFRP-GFRP) and shaped CFRP plies to increase plate post-buckling strain to failure under shear loading (2021)
Journal Article

Previous works have established the response and failure behaviour of hybrid (CFRP-GFRP) laminates when subjected to a wide range of destabilising loads. However, to date no works have quantified the influence of selective laminate shapes and hybridi... Read More about Using laminate hybridisation (CFRP-GFRP) and shaped CFRP plies to increase plate post-buckling strain to failure under shear loading.

Investigating the dynamic compression response of elastomeric, additively manufactured fluid-filled structures via experimental and finite element analyses (2021)
Journal Article

This study evaluates a fluid-filled, closed-cell lattice as a novel route to reducing peak acceleration in impact environments. A conical structure was designed and built using fused filament fabrication. One structure was manufactured hollow (100% a... Read More about Investigating the dynamic compression response of elastomeric, additively manufactured fluid-filled structures via experimental and finite element analyses.

Scavenge performance of an optimized shallow sump at various flow conditions (2021)
Journal Article

Oil scavenge flow in aero-engine bearing chamber remains largely a challenging problem for many engine designers. Research campaign on scavenge flow has been conducted by G2TRC - Gas Turbine and Transmissions Research Centre (previously Rolls Royce U... Read More about Scavenge performance of an optimized shallow sump at various flow conditions.

Aeromechanical analysis of a complete wind turbine using nonlinear frequency domain solution method (2021)
Presentation / Conference Contribution

The high-fidelity computational fluid dynamics (CFD) simulations of a complete wind turbine model usually require significant computational resources. It will require much more resources if the fluid-structure interactions between the blade and the f... Read More about Aeromechanical analysis of a complete wind turbine using nonlinear frequency domain solution method.

Numerical investigation of the effect of flutter instability of the blade on the unsteady flow in a modern low-pressure turbine (2021)
Presentation / Conference Contribution

Modern aeronautical Low-Pressure Turbines (LPTs) are prone to aeroelastic instability problems such as flutter. The aerodynamic performance of a modern LPT is often influenced by the interaction between the transient flow and the dynamic behaviour of... Read More about Numerical investigation of the effect of flutter instability of the blade on the unsteady flow in a modern low-pressure turbine.

Aeromechanical analysis of a complete wind turbine using nonlinear frequency domain solution method (2021)
Journal Article

The high-fidelity computational fluid dynamics (CFD) simulations of a complete wind turbine model usually require significant computational resources. It will require much more resources if the fluid-structure interactions (FSIs) between the blade an... Read More about Aeromechanical analysis of a complete wind turbine using nonlinear frequency domain solution method.

Detection of aircraft touchdown using longitudinal acceleration and continuous wavelet transformation (2020)
Journal Article

The paper presents a methodology enabling the detection of aircraft touchdowns based on data obtained from accelerometers attached to the structural parts of the airframe in the cockpit or passenger compartment. Precise determination of the moment an... Read More about Detection of aircraft touchdown using longitudinal acceleration and continuous wavelet transformation.

Comparison study of URANS and hybrid RANS-LES models on predicting vertical axis wind turbine performance at low, medium and high tip speed ratio ranges (2020)
Journal Article

Comparison study of unsteady Reynolds-averaged Navier-Stokes (URANS) and hybrid RANS-LES models is carried out for predicting the performance of three-straight-bladed vertical axis wind turbine operating within tip speed ratios (TSRs) ranges of (1.44... Read More about Comparison study of URANS and hybrid RANS-LES models on predicting vertical axis wind turbine performance at low, medium and high tip speed ratio ranges.

Three-dimensional strains on twisted and swept composite rotor blades in vacuum (2020)
Journal Article

This paper presents an investigation of the effects of tip sweep on highly twisted composite rotor blades by acquiring strain data in vacuum. Three parametric test cases were designed for strain measurements, and predictions from a special three-dime... Read More about Three-dimensional strains on twisted and swept composite rotor blades in vacuum.

Nonlinear frequency domain solution method for aerodynamic and aeromechanical analysis of wind turbines (2020)
Journal Article

The aerodynamic simulations of wind turbines are typically carried out using a steady inflow condition. However, the aerodynamics and aeroelasticity of wind turbine blades can be significantly affected by inflow wakes due to the environmental conditi... Read More about Nonlinear frequency domain solution method for aerodynamic and aeromechanical analysis of wind turbines.

Preliminary structural design and aerodynamic analysis of Mars science helicopter rotors (2020)
Presentation / Conference Contribution

NASA and Jet Propulsion Laboratory have proposed conceptual designs of a larger 20 kg Mars Science Helicopter (MSH) as a follow-on to the small 1.8 kg Mars Helicopter "Ingenuity". The preliminary structural design of the MSH rotor was carried out at... Read More about Preliminary structural design and aerodynamic analysis of Mars science helicopter rotors.

Direct numerical simulation of interaction between transient flow and blade structure in a modern low-pressure turbine (2020)
Journal Article

A feature of a modern aeronautical Low-Pressure Turbine (LPT) is the high blade loadings with complex, transient and separated flow regimes. Most existing research have focused only on analysing the transient flow and flow separation in such turbines... Read More about Direct numerical simulation of interaction between transient flow and blade structure in a modern low-pressure turbine.

Design optimization of grid-connected PV-Hydrogen for energy prosumers considering sector-coupling paradigm: Case study of a university building in Algeria (2020)
Journal Article

Integrating sector coupling technologies into Hydrogen (H2) based hybrid renewable energy systems (HRES) is becoming a promising way to create energy prosumers, despite the very little research work being done in this largely unexplored field. In thi... Read More about Design optimization of grid-connected PV-Hydrogen for energy prosumers considering sector-coupling paradigm: Case study of a university building in Algeria.

Laser powder bed fusion of WC-reinforced Hastelloy-X composite: Microstructure and mechanical properties (2020)
Journal Article

Nickel-based superalloys such as Hastelloy X (HX) are widely used in gas turbine engines for their exceptional oxidation resistance and high-temperature strength. The addition of ceramic reinforcement further enhances these superalloys’ mechanical pe... Read More about Laser powder bed fusion of WC-reinforced Hastelloy-X composite: Microstructure and mechanical properties.

Using FFF and topology optimisation to increase crushing strength in equestrian helmets (2020)
Presentation / Conference Contribution

International standards ensure that equestrian helmets achieve high performance. Recently, one such standard (PAS 015) was revised to include a lateral deformation requirement, ensuring helmets can withstand the potential crushing forces associated w... Read More about Using FFF and topology optimisation to increase crushing strength in equestrian helmets.

The effect of heat treatment of AlSi10Mg on the energy absorption performance of surface-based structures (2020)
Presentation / Conference Contribution

Additive Manufacturing of cellular lattice structures offers opportunities to fine-tune the mechanical response by altering geometric variables. It is known that heat treatment cycles provide an effective way of altering mechanical properties while r... Read More about The effect of heat treatment of AlSi10Mg on the energy absorption performance of surface-based structures.